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Finding the Fourth Proportional to 634,164.39, 875,155.39 and 347,683.79

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Solution

The fourth proportional to 634,164.39, 875,155.39 and 347,683.79 is: 479,808.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,164.39 : 875,155.39 = 347,683.79 : x
  2. Step 2: Convert to fraction form
    634,164.39/875,155.39 = 347,683.79/x
  3. Step 3: Cross multiply
    634,164.39x = 875,155.39 × 347,683.79
  4. Step 4: Simplify right side
    634,164.39x = 304,277,344,152.81
  5. Step 5: Solve for x
    x = 304,277,344,152.81/634,164.39
  6. Step 6: Final answer
    x = 479,808.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.